Imports github.com/flopp/go-coordsparser github.com/fogleman/gg github.com/golang/geo/r2 github.com/golang/geo/s1 github.com/golang/geo/s2 github.com/mazznoer/csscolorparser github.com/tkrajina/gpxgo/gpx Standard library imports bytes errors fmt image image/color image/draw image/jpeg image/png io log math net/http os path path/filepath strconv strings sync